Stormblade (Dragonlance Heroes #2)

A shaft of argent starlight, touched by the forge of Reorx. Hilted and gemmed in the blood of heroes. Unite! Mountain dwarves of Thorbardin. A Kingsword at last, at last.

Long Synopsis:

Deep in the cavern kingdom of Thorbardin, the powerful Stormblade is secretly crafted by an elderly dwarf-master. A Kingsword, it is intended to break the deadlock among the ruling council of Thanes.
When Stormblade is stolen and turns up years later, a series of exciting and deadly events are set in motion
Only a heroic dwarf knows the magic of Stormblade, and he sets out to recover the weapon, amidst a land rife with war and treachery...